Under Eye Filler in Korea at RE:BERRY Incheon Airport

Tear Trough Anatomy and Dark Circle Formation

The tear trough deformity results from the complex interplay of several anatomical factors in the infraorbital region. The orbicularis retaining ligament (ORL) creates a fixed point of attachment at the orbital rim, while surrounding soft tissue descends with age. Loss of suborbicularis oculi fat (SOOF) beneath the muscle creates a visible depression along the orbital rim. The extremely thin skin of the lower eyelid (0.3-0.5mm) provides minimal camouflage for underlying volume changes, making even small volumetric deficits immediately visible as shadows. Simultaneously, bone resorption at the infraorbital rim accelerates volume loss with age.

Three Types of Under-Eye Dark Circles

A 2020 clinical review of 1,500 patients classified dark circles into 3 types, with accurate classification essential for effective treatment. Shadow-type (65% of cases) results from tear trough hollowing and responds excellently to filler with 90%+ satisfaction rates. Pigmentary dark circles (20%) involve melanin deposition and require laser toning over 3-6 sessions. Vascular dark circles (15%) are caused by visible blood vessels beneath 0.3-0.5mm thin eyelid skin and benefit from vascular laser. RE:BERRY's 60-90 minute consultation distinguishes between types.

Why Blunt Cannula Is Essential for Under Eye Filler

The infraorbital region contains critical vascular structures including the infraorbital artery, angular artery branches, and the superficial medial palpebral artery. Inadvertent intravascular injection in this area can cause retinal artery occlusion leading to vision loss -- the most serious complication of facial filler. Blunt-tipped cannulas physically push vessels aside rather than piercing them, dramatically reducing vascular risk. Studies by Goodman et al. (2020) demonstrated that cannula-based tear trough injection resulted in 85% less bruising compared to needle techniques, with zero vascular complications in over 500 patients.

Filler Selection for the Under-Eye Area

The ideal under-eye filler must have 3 specific rheological properties: viscosity below 200 Pa·s for smooth integration in 0.5mm-thick periorbital skin, low cohesivity G' (<40 Pa) to avoid palpable lumps, and water uptake under 1.5x to prevent excessive swelling. Belotero Balance (22.5 mg/mL CPM-crosslinked HA) integrates homogeneously with Tyndall effect rates under 1%. Juvederm Volbella (15 mg/mL VYCROSS) provides subtle volume for 12-15 months. Higher-viscosity fillers produce 3-5% lumpy outcomes in thin periorbital skin.

References: Goodman GJ et al. Aesthet Surg J. 2020;40(9):1014-1023. doi:10.1093/asj/sjz354 | Hirmand H. Plast Reconstr Surg. 2010;125(5):1551-1558. | Goldberg RA et al. Ophthalmic Plast Reconstr Surg. 2005;21(5):377-382. doi:10.1097/01.prs.0000157016.49072.61 | Morley AM, Malhotra R. Ophthalmic Plast Reconstr Surg. 2011;27(2):130-134.